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megacycle

American  
[meg-uh-sahy-kuhl] / ˈmɛg əˌsaɪ kəl /

noun

  1. Electricity. a unit of frequency, equal to one million cycles per second; megahertz. The term megahertz is now preferred in technical use. Mc, mc


Etymology

Origin of megacycle

First recorded in 1925–30; mega- + cycle